env_filter is used at run time in 2,394 crates (of which 199 optionally). It is a direct run-time dependency in 10 crates. It's used at build time in 26 crates (of which 4 optionally, ). It's used only as a dev dependency in 1,019 crates.

Depender (with downloads and own rev deps) env_filter version
12.1M 8433 env_logger ^0.1.0
448K 59 android_logger ^0.1
26K 8 logforth ^0.1.1
5.8K hilog ^0.1.0
650 logfire ^0.1
130 hitdns ^0.1.0
120 krossbar-log-viewer ^0.1
1 gelf_logger ^0.1.0
krossbar-logger ^0.1
krossbar-log-control ^0.1